Complete the sentences with the correct form of the verbs in brackets.

1 If he .... (not drink) so much coffee, he..... (not suffer) from headaches so often.
2 My mum .... (travel) to some exotic countries if she .... (have) more money.
3 Is it time we .... (go) home?
4 I'd rather the doctors .... (not go) on strike this week.